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Modeling human telencephalic development and autism-associated SHANK3 deficiency using organoids generated from single neural rosettes

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE210960 | GEO | 2022/08/11

REPOSITORIES: GEO

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Modeling human telencephalic development and autism-associated SHANK3 deficiency using organoids generated from single neural rosettes.

Project description:Human telencephalon is an evolutionarily advanced brain structure associated with many uniquely human behaviors and disorders. However, cell lineages and molecular pathways implicated in human telencephalic development remain largely unknown. We produce human telencephalic organoids from stem cell-derived single neural rosettes and investigate telencephalic development under normal and pathological conditions. We show that single neural rosette-derived organoids contain pallial and subpallial neural progenitors, excitatory and inhibitory neurons, as well as macroglial and periendothelial cells, and exhibit predictable organization and cytoarchitecture. We comprehensively characterize the properties of neurons in SNR-derived organoids and identify transcriptional programs associated with the specification of excitatory and inhibitory neural lineages from a common pool of NPs early in telencephalic development. We also demonstrate that neurons in organoids with a hemizygous deletion of an autism- and intellectual disability-associated gene SHANK3 exhibit intrinsic and excitatory synaptic deficits and impaired expression of several clustered protocadherins. Collectively, this study validates SNR-derived organoids as a reliable model for studying human telencephalic cortico-striatal development and identifies intrinsic, synaptic, and clustered protocadherin expression deficits in human telencephalic tissue with SHANK3 hemizygosity.

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Modeling human telencephalic development and autism-associated SHANK3 deficiency using organoids generated from single neural rosettes [scRNA-seq]

Project description:Human telencephalon is an evolutionary advanced brain structure associated with many uniquely human behaviors and disorders. However, cell lineages and molecular pathways implicated in human telencephalic development remains largely unknown. We generated human telencephalic organoids from stem cell-derived single neural rosettes (SNRs) and investigated telencephalic development under normal and pathological conditions. SNR-derived organoids contained pallial and subpallial neural progenitors (NPs), excitatory and inhibitory neurons, as well as macroglial and periendothelial cells, and demonstrated predictable organization and cytoarchitecture. We comprehensively characterized the properties of neurons in SNR-derived organoids and identified transcriptional programs associated with the specification of+B50:B51 excitatory and inhibitory lineages from a common pool of NPs early in telencephalic development. We also demonstrated that neurons in organoids with a hemizygous deletion of an autism- and intellectual disability associated gene SHANK3 exhibit intrinsic and excitatory synaptic deficits associated with impaired expression of clustered protocadherins. Collectively, this study validates SNR-derived organoids as a reliable new model for studying human telencephalic development and identifies novel molecular pathways disrupted by SHANK3 hemizygosity in human telencephalic tissue.

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Modeling human telencephalic development and autism-associated SHANK3 deficiency using organoids generated from single neural rosettes [bulk RNA-seq2]

Project description:Human telencephalon is an evolutionary advanced brain structure associated with many uniquely human behaviors and disorders. However, cell lineages and molecular pathways implicated in human telencephalic development remains largely unknown. We generated human telencephalic organoids from stem cell-derived single neural rosettes (SNRs) and investigated telencephalic development under normal and pathological conditions. SNR-derived organoids contained pallial and subpallial neural progenitors (NPs), excitatory and inhibitory neurons, as well as macroglial and periendothelial cells, and demonstrated predictable organization and cytoarchitecture. We comprehensively characterized the properties of neurons in SNR-derived organoids and identified transcriptional programs associated with the specification of excitatory and inhibitory lineages from a common pool of NPs early in telencephalic development. We also demonstrated that neurons in organoids with a hemizygous deletion of an autism- and intellectual disability associated gene SHANK3 exhibit intrinsic and excitatory synaptic deficits associated with impaired expression of clustered protocadherins. Collectively, this study validates SNR-derived organoids as a reliable new model for studying human telencephalic development and identifies novel molecular pathways disrupted by SHANK3 hemizygosity in human telencephalic tissue.

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